Table 3.
The comparison of polygraphy parameters depending on the presence of significant Cheyne-Stokes respiration (CSR).
| Variable | Mean ±SD | p | |
|---|---|---|---|
| Significant CSR (n=51) | Without significant CSR (n=110) | ||
| AHI [1/h] | 33.4±11.7 | 11.4±12.4 | <0.0001 |
| AHI obstructive [1/h] | 4.8±4.4 | 7.7±10.8 | 0.480 |
| AHI central [1/h] | 28.6±11.0 | 3.7±4.2 | <0.0001 |
| ODI [1/h] | 32.0±13.0 | 12.7±12.4 | <0.0001 |
| Minimal SaO2 [%] | 78.7±6.8 | 82.6±5.7 | <0.001 |
| Mean SaO2 [%] | 92.5±2.0 | 92.9±1.9 | 0.274 |
| Mean desaturation [%] | 7.4±2.4 | 5.8±3.6 | <0.0001 |
Data presented as means ±SD or as a number (percentage). AHI – apnea/hypopnea index; ODI – oxygen desaturation index; SaO2 – arterial oxygen saturation.